SharePoint - How to enable office add-in (word) in SharePoint 2013 environment?

Hi,

We have created add-in for MS-Word which enables us to apply some custom actions in the document. For that we need to install that add-in in our local system.

Now we have configured office web app to open the word doc in SharePoint 2013 environment. We want to enable that office add-in in the word doc when it opens in SharePoint 2013 environment in browser. So, how can achieve this?

If it is not possible, then we have to recreate add-in as office web app to run into SharePoint. So please provide information on how to create the same?

Thanks.